/**
* Creates a new <code>Shell</code>. This Shell is the root for the SWT widgets that will be
* embedded within the AWT canvas.
*
* @param display the display for the new Shell
* @param parent the parent <code>java.awt.Canvas</code> of the new Shell
* @return a <code>Shell</code> to be the parent of the embedded SWT widgets
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the display is null
* <li>ERROR_NULL_ARGUMENT - if the parent is null
* <li>ERROR_INVALID_ARGUMENT - if the parent's peer is not created
* </ul>
*
* @since 3.0
*/
public static Shell new_Shell(final Display display, final Canvas parent) {
if (display == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (parent == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
int /*long*/ handle = 0;
try {
loadLibrary();
handle = getAWTHandle(parent);
} catch (Throwable e) {
SWT.error(SWT.ERROR_NOT_IMPLEMENTED, e);
}
if (handle == 0) SWT.error(SWT.ERROR_INVALID_ARGUMENT, null, " [peer not created]");
final Shell shell = Shell.cocoa_new(display, handle);
final ComponentListener listener =
new ComponentAdapter() {
public void componentResized(ComponentEvent e) {
display.asyncExec(
new Runnable() {
public void run() {
if (shell.isDisposed()) return;
Dimension dim = parent.getSize();
shell.setSize(dim.width, dim.height);
}
});
}
};
parent.addComponentListener(listener);
shell.addListener(
SWT.Dispose,
new Listener() {
public void handleEvent(Event event) {
parent.removeComponentListener(listener);
}
});
shell.setVisible(true);
return shell;
}
/**
* Returns a <code>java.awt.Frame</code> which is the embedded frame associated with the specified
* composite.
*
* @param parent the parent <code>Composite</code> of the <code>java.awt.Frame</code>
* @return a <code>java.awt.Frame</code> the embedded frame or <code>null</code>.
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null
* </ul>
*
* @since 3.2
*/
public static Frame getFrame(Composite parent) {
if (parent == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if ((parent.getStyle() & SWT.EMBEDDED) == 0) return null;
return (Frame) parent.getData(EMBEDDED_FRAME_KEY);
}
/**
* Creates a new <code>java.awt.Frame</code>. This frame is the root for the AWT components that
* will be embedded within the composite. In order for the embedding to succeed, the composite
* must have been created with the SWT.EMBEDDED style.
*
* <p>IMPORTANT: As of JDK1.5, the embedded frame does not receive mouse events. When a
* lightweight component is added as a child of the embedded frame, the cursor does not change. In
* order to work around both these problems, it is strongly recommended that a heavyweight
* component such as <code>java.awt.Panel</code> be added to the frame as the root of all
* components.
*
* @param parent the parent <code>Composite</code> of the new <code>java.awt.Frame</code>
* @return a <code>java.awt.Frame</code> to be the parent of the embedded AWT components
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null
* <li>ERROR_INVALID_ARGUMENT - if the parent Composite does not have the SWT.EMBEDDED style
* </ul>
*
* @since 3.0
*/
public static Frame new_Frame(final Composite parent) {
if (parent == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if ((parent.getStyle() & SWT.EMBEDDED) == 0) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
final int /*long*/ handle = parent.view.id;
Class clazz = null;
try {
String className =
embeddedFrameClass != null ? embeddedFrameClass : "apple.awt.CEmbeddedFrame";
if (embeddedFrameClass == null) {
clazz = Class.forName(className, true, ClassLoader.getSystemClassLoader());
} else {
clazz = Class.forName(className);
}
} catch (ClassNotFoundException cne) {
SWT.error(SWT.ERROR_NOT_IMPLEMENTED, cne);
} catch (Throwable e) {
SWT.error(SWT.ERROR_UNSPECIFIED, e, " [Error while starting AWT]");
}
initializeSwing();
Object value = null;
Constructor constructor = null;
try {
constructor = clazz.getConstructor(new Class[] {long.class});
value = constructor.newInstance(new Object[] {new Long(handle)});
} catch (Throwable e) {
SWT.error(SWT.ERROR_NOT_IMPLEMENTED, e);
}
final Frame frame = (Frame) value;
frame.addNotify();
parent.setData(EMBEDDED_FRAME_KEY, frame);
/* Forward the iconify and deiconify events */
final Listener shellListener =
new Listener() {
public void handleEvent(Event e) {
switch (e.type) {
case SWT.Deiconify:
EventQueue.invokeLater(
new Runnable() {
public void run() {
frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_DEICONIFIED));
}
});
break;
case SWT.Iconify:
EventQueue.invokeLater(
new Runnable() {
public void run() {
frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_ICONIFIED));
}
});
break;
}
}
};
Shell shell = parent.getShell();
shell.addListener(SWT.Deiconify, shellListener);
shell.addListener(SWT.Iconify, shellListener);
/*
* Generate the appropriate events to activate and deactivate
* the embedded frame. This is needed in order to make keyboard
* focus work properly for lightweights.
*/
Listener listener =
new Listener() {
public void handleEvent(Event e) {
switch (e.type) {
case SWT.Dispose:
Shell shell = parent.getShell();
shell.removeListener(SWT.Deiconify, shellListener);
shell.removeListener(SWT.Iconify, shellListener);
parent.setVisible(false);
EventQueue.invokeLater(
new Runnable() {
public void run() {
try {
frame.dispose();
} catch (Throwable e) {
}
}
});
break;
case SWT.FocusIn:
EventQueue.invokeLater(
new Runnable() {
public void run() {
if (frame.isActive()) return;
try {
Class clazz = frame.getClass();
Method method =
clazz.getMethod(
"synthesizeWindowActivation", new Class[] {boolean.class});
if (method != null)
method.invoke(frame, new Object[] {new Boolean(true)});
} catch (Throwable e) {
e.printStackTrace();
}
}
});
break;
case SWT.Deactivate:
EventQueue.invokeLater(
new Runnable() {
public void run() {
if (!frame.isActive()) return;
try {
Class clazz = frame.getClass();
Method method =
clazz.getMethod(
"synthesizeWindowActivation", new Class[] {boolean.class});
if (method != null)
method.invoke(frame, new Object[] {new Boolean(false)});
} catch (Throwable e) {
e.printStackTrace();
}
}
});
break;
}
}
};
parent.addListener(SWT.FocusIn, listener);
parent.addListener(SWT.Deactivate, listener);
parent.addListener(SWT.Dispose, listener);
parent
.getDisplay()
.asyncExec(
new Runnable() {
public void run() {
if (parent.isDisposed()) return;
final Rectangle clientArea = parent.getClientArea();
EventQueue.invokeLater(
new Runnable() {
public void run() {
frame.setSize(clientArea.width, clientArea.height);
frame.validate();
// Bug in Cocoa AWT? For some reason the frame isn't showing up on first
// draw.
// Toggling visibility seems to be the only thing that works.
frame.setVisible(false);
frame.setVisible(true);
}
});
}
});
return frame;
}